I would immediately suspect motion blur, especially if it is Mental Ray...

N

From: [email protected] 
[mailto:[email protected]] On Behalf Of Antonin Messier
Sent: Saturday, 14 December 2013 2:00 AM
To: [email protected]
Subject: Closeup frames super long to render.

I have a shot of a character covered in vegetation, that starts from a closeup 
of his hand and ends in a full body shot. The last frames, where we see the 
whole character (including the hand), are very fast to render. Hoever the 
closer we are to the hand, the longer the render is, up to a point where the 
first frames take ages before they even start rendering. There is no 
displacement or anything distance-based in the scene.

Anybody has a clue what could be causing this?

Antonin Messier Turcotte

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